| 초록 |
TNT waste is composed of 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triaxzine (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), because of the toxicity and possible carcinogenicity of TNT and RDX, these chemical substances need to be removed before TNT waste is discharged to the environment. Conventional wastewater treatment technologies have been mainly used for incineration. This study investigates a continuos drum ice crystallization process that consume less energy than incineration. The ice from the crystallizer is transferred to a wash column, sweating process proceed with changed the pressure of the decompressor used in the separation process to 200, 400, 600, 800, while maintaining the temperature 20℃. As a result, as the pressure decreased from 800 mbar to 200 mbar, the separation rate became faster and more pure crystals could be obtained from 103 ppm to 63 ppm. |
